DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse must administer acetaminophen 650 mg PO. The
medication available is acetaminophen 325 mg tablets.
How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 3 tablets
Correct Answer: C. 2 tablets
Rationale:
Step 1: Set up dimensional analysis.
[
650 \text{ mg} \times \frac{1 \text{ tablet}}{325 \text{ mg}}
]
Step 2: Cancel mg.
[
\frac{650}{325}=2
]
Step 3: Solution
Administer 2 tablets.
,Medication Safety Note: Always verify tablet strength before
administration to avoid underdosing or overdosing.
Question 2 (Easy)
A provider prescribes amoxicillin 500 mg PO. The suspension
available contains 250 mg/5 mL.
How many mL should the nurse administer?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Correct Answer: B. 10 mL
Rationale:
Step 1:
[
500 \text{ mg} \times \frac{5 \text{ mL}}{250 \text{ mg}}
]
Step 2:
[
\frac{500 \times 5}{250}=10
]
, Step 3: Solution
Administer 10 mL.
Medication Safety Note: Shake suspensions well before
measuring doses.
Question 3 (Easy)
A medication order requires 1.5 g of cefazolin IV. How many
milligrams is this?
A. 150 mg
B. 1,500 mg
C. 15,000 mg
D. 150,000 mg
Correct Answer: B. 1,500 mg
Rationale:
Step 1:
[
1.5 \text{ g} \times \frac{1000 \text{ mg}}{1 \text{ g}}
]
Step 2:
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse must administer acetaminophen 650 mg PO. The
medication available is acetaminophen 325 mg tablets.
How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 3 tablets
Correct Answer: C. 2 tablets
Rationale:
Step 1: Set up dimensional analysis.
[
650 \text{ mg} \times \frac{1 \text{ tablet}}{325 \text{ mg}}
]
Step 2: Cancel mg.
[
\frac{650}{325}=2
]
Step 3: Solution
Administer 2 tablets.
,Medication Safety Note: Always verify tablet strength before
administration to avoid underdosing or overdosing.
Question 2 (Easy)
A provider prescribes amoxicillin 500 mg PO. The suspension
available contains 250 mg/5 mL.
How many mL should the nurse administer?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Correct Answer: B. 10 mL
Rationale:
Step 1:
[
500 \text{ mg} \times \frac{5 \text{ mL}}{250 \text{ mg}}
]
Step 2:
[
\frac{500 \times 5}{250}=10
]
, Step 3: Solution
Administer 10 mL.
Medication Safety Note: Shake suspensions well before
measuring doses.
Question 3 (Easy)
A medication order requires 1.5 g of cefazolin IV. How many
milligrams is this?
A. 150 mg
B. 1,500 mg
C. 15,000 mg
D. 150,000 mg
Correct Answer: B. 1,500 mg
Rationale:
Step 1:
[
1.5 \text{ g} \times \frac{1000 \text{ mg}}{1 \text{ g}}
]
Step 2:
